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Finding the Fourth Proportional to 259,057.30, 387,983.70 and 250,077.64

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Solution

The fourth proportional to 259,057.30, 387,983.70 and 250,077.64 is: 374,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,057.30 : 387,983.70 = 250,077.64 : x
  2. Step 2: Convert to fraction form
    259,057.30/387,983.70 = 250,077.64/x
  3. Step 3: Cross multiply
    259,057.30x = 387,983.70 × 250,077.64
  4. Step 4: Simplify right side
    259,057.30x = 97,026,048,054.47
  5. Step 5: Solve for x
    x = 97,026,048,054.47/259,057.30
  6. Step 6: Final answer
    x = 374,535.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.